./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/alias_of_return_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/alias_of_return_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f9d70a2be78eceef3995b3661c64711e6d447045 ............................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:26:56,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:26:56,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:26:56,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:26:56,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:26:56,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:26:56,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:26:56,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:26:56,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:26:56,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:26:56,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:26:56,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:26:56,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:26:56,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:26:56,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:26:56,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:26:56,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:26:56,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:26:56,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:26:56,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:26:56,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:26:56,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:26:56,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:26:56,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:26:56,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:26:56,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:26:56,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:26:56,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:26:56,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:26:56,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:26:56,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:26:56,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:26:56,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:26:56,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:26:56,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:26:56,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:26:56,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:26:56,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:26:56,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:26:56,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:26:56,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:26:56,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:26:56,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:26:56,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:26:56,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:26:56,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:26:56,250 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:26:56,250 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:26:56,250 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:26:56,250 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:26:56,250 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:26:56,250 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:26:56,250 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:26:56,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:26:56,251 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:26:56,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:26:56,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:26:56,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:26:56,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:26:56,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:26:56,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:26:56,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:26:56,253 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:26:56,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:26:56,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:26:56,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:26:56,253 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:26:56,254 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:26:56,254 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9d70a2be78eceef3995b3661c64711e6d447045 [2019-12-07 18:26:56,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:26:56,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:26:56,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:26:56,370 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:26:56,371 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:26:56,371 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/alias_of_return_2.i [2019-12-07 18:26:56,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/data/64e8ed30f/fc62f58ea2444b31a3484017a5309e9f/FLAG5533f0472 [2019-12-07 18:26:56,753 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:26:56,753 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/sv-benchmarks/c/ldv-regression/alias_of_return_2.i [2019-12-07 18:26:56,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/data/64e8ed30f/fc62f58ea2444b31a3484017a5309e9f/FLAG5533f0472 [2019-12-07 18:26:57,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/data/64e8ed30f/fc62f58ea2444b31a3484017a5309e9f [2019-12-07 18:26:57,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:26:57,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:26:57,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:26:57,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:26:57,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:26:57,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d9133a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57, skipping insertion in model container [2019-12-07 18:26:57,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:26:57,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:26:57,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:26:57,329 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:26:57,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:26:57,388 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:26:57,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57 WrapperNode [2019-12-07 18:26:57,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:26:57,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:26:57,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:26:57,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:26:57,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:26:57,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:26:57,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:26:57,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:26:57,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... [2019-12-07 18:26:57,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:26:57,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:26:57,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:26:57,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:26:57,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cba05f2e-0b5a-4814-87d9-0547a512c87a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:26:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:26:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:26:57,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:26:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:26:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:26:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:26:57,591 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:26:57,591 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 18:26:57,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:57 BoogieIcfgContainer [2019-12-07 18:26:57,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:26:57,592 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:26:57,592 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:26:57,595 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:26:57,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:26:57,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:26:57" (1/3) ... [2019-12-07 18:26:57,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b23811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:26:57, skipping insertion in model container [2019-12-07 18:26:57,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:26:57,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:26:57" (2/3) ... [2019-12-07 18:26:57,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b23811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:26:57, skipping insertion in model container [2019-12-07 18:26:57,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:26:57,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:57" (3/3) ... [2019-12-07 18:26:57,598 INFO L371 chiAutomizerObserver]: Analyzing ICFG alias_of_return_2.i [2019-12-07 18:26:57,626 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:26:57,626 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:26:57,626 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:26:57,626 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:26:57,626 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:26:57,626 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:26:57,626 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:26:57,626 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:26:57,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-12-07 18:26:57,647 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:26:57,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:26:57,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:26:57 BoogieIcfgContainer [2019-12-07 18:26:57,651 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:26:57,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:26:57,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:26:57,651 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:26:57,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:26:57" (3/4) ... [2019-12-07 18:26:57,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:26:57,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:26:57,655 INFO L168 Benchmark]: Toolchain (without parser) took 458.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -121.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:26:57,655 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:26:57,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -147.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:57,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:26:57,657 INFO L168 Benchmark]: Boogie Preprocessor took 12.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:57,658 INFO L168 Benchmark]: RCFGBuilder took 166.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:57,658 INFO L168 Benchmark]: BuchiAutomizer took 58.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:26:57,659 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:26:57,662 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -147.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 166.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 58.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.0s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...